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Title: Long-range quantum entanglement in noisy cluster states

Journal Article · · Physical Review. A
; ;  [1]
  1. Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125 (United States)

We describe a phase transition for long-range entanglement in a three-dimensional cluster state affected by noise. The partially decohered state is modeled by the thermal state of a short-range translation-invariant Hamiltonian. We find that the temperature at which the entanglement length changes from infinite to finite is nonzero. We give an upper and lower bound to this transition temperature.

OSTI ID:
20717878
Journal Information:
Physical Review. A, Vol. 71, Issue 6; Other Information: DOI: 10.1103/PhysRevA.71.062313; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English